GB2310067A - Battery built-in wireless ID card unit and ID verification unit - Google Patents

Battery built-in wireless ID card unit and ID verification unit Download PDF

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Publication number
GB2310067A
GB2310067A GB9701996A GB9701996A GB2310067A GB 2310067 A GB2310067 A GB 2310067A GB 9701996 A GB9701996 A GB 9701996A GB 9701996 A GB9701996 A GB 9701996A GB 2310067 A GB2310067 A GB 2310067A
Authority
GB
United Kingdom
Prior art keywords
magnetic field
section
code
wireless
power switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9701996A
Other versions
GB9701996D0 (en
Inventor
Masahiko Tanaka
Kenji Okita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of GB9701996D0 publication Critical patent/GB9701996D0/en
Publication of GB2310067A publication Critical patent/GB2310067A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • G06K19/0702—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a battery
    • G06K19/0705—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a battery the battery being connected to a power saving arrangement
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Credit Cards Or The Like (AREA)
  • Power Sources (AREA)
  • Lock And Its Accessories (AREA)

Abstract

A wireless ID unit 30, such as a card, includes a magnetic field detection section 3 which generates an electromotive force from a received magnetic field (generated by an ID verification unit 20 at, for example, a gate or door) to turn on a power switch 2 of a built-in battery 1. The battery then powers a control section 5 which transmits an ID code by radio 7,8. The control section 5 then turns off the power switch 2.

Description

BATTERY BUILT-IN WIRELESS ID CARD UNIT AND ID VERIFICATION UNIT BACKGROUND OF THE INVENTION The present invention relates to a battery built-in wireless ID card unit and an ID verification unit there for and, more particularly, to a battery built-in wireless ID card unit having an ideal battery saving function, and an ID verification unit therefor.
In a conventional battery built-in wireless ID card unit, a control section and the like are kept powered on and always held in an operative state, and part of the unit, e.g., a verification signal reception section or an ID signal transmission section is powered on/off at a predetermined period, thereby reducing the power consumption.
The conventional battery built-in wireless ID card unit employs the battery saving system for powering on/off only part of the unit at a predetermined period. With this arrangement, the remaining sections of the unit must always be set in the operative state, so no large current consumption reducing effect can be obtained.
SUMMARY OF THE INVENTION In a first aspect of the present invention, there is provided a battery built-in wireless ID card unit comprising a magnetic field detection section which generates an electromotive force from a received magnetic field to turn on a power switch of a built-in battery, and a control section which is capable of sending out an ID code after the power switch is turned on, and thereafter turning off the power switch.
This first aspect of the invention may thus advantageously provide a battery built-in wireless ID card unit having high battery saving performance, which turns on the power supply only when communication is required.
The battery built-in wireless ID card unit described in the first aspect advantageously further comprises an ID code memory section and a radio transmission section, wherein, in an ON state of the power switch, the control section reads out the ID code from the ID code memory section, and the radio transmission section transmits the ID code by radio.
The control section according to the first basic aspect can advantageously also transmit a control signal for stopping generation of the magnetic field via the radio transmission section by radio after the power switch is turned on.
In a second aspect of the present invention, there is provided a wireless ID verification unit comprising a magnetic field generation section for transmitting a verification signal as a magnetic field, an antenna section for receiving a radio signal, and a verification section which detects, from the radio signal, an ID code and/or a stop control signal for stopping generation of the magnetic field, and stops generation of the magnetic field for a predetermined period of time.
This second aspect of the invention may thus advantageously provide a wireless ID verification unit which can further improve the battery saving performance of the battery built-in wireless ID card unit.
According to the battery built-in wireless ID card unit of the present invention, the power supply is preferably turned on only during the radio signal transmission period.
Therefore, an ideal battery saving function may be realized, and power consumption can be largely reduced.
In addition, according to the ID verification unit of the present invention, transmission of a verification signal may advantageously be controlled. With this arrangement, an increase in current consumption caused by repeated response of the battery built-in wireless ID card unit can be prevented.
The above and many other advantages, features and additional objects of the present invention will become manifest to those versed in the art upon making reference to the following detailed description and accompanying drawings in which preferred embodiments incorporating the principles of the present invention are shown by way of illustrative example.
BRIEF DESCRIPTION OF THE DRAWING Figure 1 is a block diagram schematically showing the arrangements of a battery built-in wireless ID card unit and an ID verification unit according to an embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the accompanying drawing.
Figure 1 is a block diagram showing the arrangements of a battery built-in wireless ID card unit (to be referred to as an "ID card unit" hereinafter) according to an embodiment of the present invention and a wireless ID verification unit (to be referred to as an "ID verification unit" hereinafter) which verifies an ID code by the ID card unit, and receives and detects an ID code signal.
Referring to this figure, an ID verification unit 20 is placed at a gate, a door, a computer apparatus, or the like.
The ID verification unit 20 is a unit for reading an ID code signal from an ID card unit 30 and comprises a verifier 10, a magnetic field generator 11, and a reception antenna 12.
The magnetic field generator I1 transmits a magnetic field as a verification signal to the ID card unit always or except during a stop control operation. The verifier 10 receives a radio signal from the reception antenna 12 and detects the identification number or the like of the ID card unit of a card owner, thereby identifying the card owner.
The ID card unit 30 having data such as a person identification number and an attribute recorded therein incorporates a battery 1 and a plurality of signal processing blocks Power from the battery 1 is supplied to the respective blocks via a main switch 2.
More specifically, the ID card unit 30 comprises a magnetic field detection section 3 for detecting an externally received magnetic field, the main switch section 2 which is ON/OFF-controlled depending on an output from the magnetic field detection section 3, an ID code memory section 4 to which a power is supplied from the battery via the main switch 2, a modulator 6 for modulating an ID code signal, a radio transmitter 7 for transmitting an output from the modulator 6 by radio, a control section 5 for controlling the entire ID card unit, a radio transmission antenna 8, and an external input/output terminal 9 for inputting/outputting data to/from the memory section.
The operation of this embodiment will be described below In this figure, the magnetic field generator 11 of the ID verification unit 20 placed at an appropriate detection portion of, e.g., a gate to detect the proximity of the ID card unit 30 or the owner of the ID card unit 30 generates a magnetic field.
When the owner of the ID card unit 30 approaches the magnetic field generator 11, or when the ID card unit 30 is made close to the magnetic field generator 11, the ID card unit 30 receives the magnetic field from the ID verification unit 20. A weak electromotive force is generated from the magnetic field detection section 3 in response to the magnetic field. Using this electromotive force, the main switch section 2 of the power supply battery 1 in the unit is switched to the ON state. With this operation, a current is applied to the circuit portions in ID card unit 30, which require power supply.
When the respective circuit portions in the ID card unit 30 are powered on, the control section 5 starts a control operation, designates the read address of an ID code in the ID code memory section 4, and reads out the ID code.
The readout ID code is sent to the modulator 6. The modulator 6 modulates the ID code and sends the modulated signal to the radio transmitter 7. The radio transmitter 7 transmits, as a radio signal, the modulated signal of the ID code from the antenna 8 to the antenna 12 of the ID verification unit 20.
When the ID card unit 30 completes the radio signal transmission operation, the control section 5 recognizes the completion of transmission and other control operations, and controls the magnetic field detection section 3 or directly controls the main switch section 2 to switch the main switch 2 to the OFF state, thereby powering off the entire ID card unit 30.
The ID verification unit 20 receives, via the antenna 12, the radio signal transmitted from the ID card unit 30.
The verifier 10 demodulates the ID code from the radio signal, determines and recognizes the ID code and the ID code owner on the basis of the ID data recorded in a table incorporated in the verifier 10 or the person's information to which the ID code is assigned, and outputs a control signal necessary for, e.g., opening the gate.
With the above arrangement and operation, the magnetic field detection section 3 and the external input terminal 9 require no power from the built-in battery power supply 1.
In addition, since the remaining circuit portions are powered only during the operation period necessary for ID code transmission, the current consumption can be reduced to a necessary minimum level.
In this embodiment, the ID card unit 30 is started by a magnetic field and therefore may have an arrangement such that the power switch is turned on again after transmission of an ID code radio signal, and a similar operation is repeated. In this case, the control operation is performed to transmit the ID code signal as long as a magnetic field is detected. With this arrangement, the reliability can be prevented from being degraded due to a failure in ID code recognition by the verifier 10.
In a system coping with a case in which the owner of the ID card unit 30 stays near the magnetic field generator 11 of the ID verification unit 20 for a long period of time, the ID card unit 30 always receives the magnetic field.
With the above arrangement, ID code signal transmission is repeated, so the battery power supply saving function cannot exhibit a sufficient effect. In such a case, it is preferable that transmission of the magnetic field from the magnetic field generator 11 be stopped for a predetermined period of time after the ID code signal is identified by the verifier 10. In addition, control may be performed by the control section 5 not to repeatedly transmit the ID code radio signal. For example, the ID code radio signal is transmitted from the ID card unit 30 a necessary number of times in the ON state of the built-in battery. At the same time, a control signal for stopping generation of the magnetic field on the ID verification unit 20 side is also transmitted by radio. With this arrangement, control is performed to stop transmission of the magnetic field from the magnetic field generator 11 for a predetermined period of time.
In the above embodiment, the respective sections of the ID card unit 30 are powered on/off at once. In place of this arrangement, a plurality of switches may be arranged.
The necessary minimum circuit portions including the control section are powered on by the electromotive force from the magnetic field detection section 3. Thereafter, the necessary circuit portions are appropriately and sequentially powered on under the control of the control section. The power OFF operation is also performed in units of circuit portions after the respective necessary operations are completed. With this arrangement, a larger battery saving effect can be obtained.
In the above embodiment, the battery built-in wireless ID card unit 30 of the present invention has been described as an ID card. However, the form of the ID unit is not limited to the card. The main switch section 2 of the built-in battery may be constituted by a mechanical switch or an electronic switch such as a transistor which is operated by an electromotive force from the magnetic field detection section 3. In addition, when a manual switch for turning on/off the power supply is independently arranged in series with the main switch section 2, unnecessary ID code transmission can be effectively prevented, as a matter of course.

Claims (5)

Claims
1. A battery built-in wireless ID card unit comprising: a magnetic field detection section which generates an electromotive force from a received magnetic field to turn on a power switch of a built-in battery; and a control section which is capable of sending out an ID code after said power switch is turned on, and thereafter turning off said power switch.
2. A battery built-in wireless ID card unit according to claim 1, further comprising an ID code memory section and a radio transmission section, and wherein, in an ON state of said power switch, said control section reads out the ID code from said ID code memory section, and said radio transmission section transmits the ID code by radio.
3. A battery built-in wireless ID card unit according to claim 2, wherein said control section can also transmit a control signal for stopping generation of the magnetic field via said radio transmission section by radio after said power switch is turned on.
4. A wireless ID verification unit comprising: a magnetic field generation section for transmitting a verification signal as a magnetic field; an antenna section for receiving a radio signal; and a verification section which detects, from the radio signal, an ID code and/or a stop control signal for stopping generation of the magnetic field, and stops generation of the magnetic field for a predetermined period of time.
5. A battery built-in wireless ID unit comprising a magnetic field detection section which generates an electromotive force from a received magnetic field to turn on a power switch of a built-in battery; and a control section which is capable of sending out an ID code after said power switch is turned on, and thereafter turning off said power switch.
GB9701996A 1996-02-06 1997-01-31 Battery built-in wireless ID card unit and ID verification unit Withdrawn GB2310067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP01954296A JP3226778B2 (en) 1996-02-06 1996-02-06 Battery built-in wireless ID device and ID interrogation device

Publications (2)

Publication Number Publication Date
GB9701996D0 GB9701996D0 (en) 1997-03-19
GB2310067A true GB2310067A (en) 1997-08-13

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Family Applications (1)

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GB9701996A Withdrawn GB2310067A (en) 1996-02-06 1997-01-31 Battery built-in wireless ID card unit and ID verification unit

Country Status (4)

Country Link
US (1) US6011483A (en)
JP (1) JP3226778B2 (en)
AU (1) AU722779B2 (en)
GB (1) GB2310067A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2088540A1 (en) * 2008-02-06 2009-08-12 Gemalto SA Portable object with auto-switching device
GB2476334A (en) * 2009-12-15 2011-06-22 Samsung Electro Mech Electronic Shelf Label Wake Up Using Magnetic Field
EP2369524A1 (en) * 2008-11-26 2011-09-28 Nationz Technologies Inc. Radio frequency sim card, radio frequency card reader and magnetic induction control method for radio frequency communication
EP2511849A1 (en) * 2009-12-09 2012-10-17 Nationz Technologies Inc. Radio frequency (rf) apparatus, rf card reader, relative communication system and communication method
US8630584B2 (en) 2008-11-26 2014-01-14 Nationz Technologies Inc. RF SIM card, card reader, and communication method

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US6791398B1 (en) * 2000-02-17 2004-09-14 Magnex Corp. Data token with power saving switch
US7015801B1 (en) 2000-10-13 2006-03-21 Trw Inc. Vehicle-controlled tire condition sensor communication utilizing fixed tire identification
FR2821692A1 (en) * 2001-03-02 2002-09-06 Schlumberger Systems & Service INTEGRATED CIRCUIT BOARD WITH INCORPORATED POWER SUPPLY
US6863220B2 (en) * 2002-12-31 2005-03-08 Massachusetts Institute Of Technology Manually operated switch for enabling and disabling an RFID card
TWI226588B (en) * 2003-04-23 2005-01-11 Winbond Electronics Corp Contactless radio frequency magnetic field data transmission card and associated application system
JP2004328263A (en) * 2003-04-23 2004-11-18 Mitsubishi Electric Corp On-vehicle dsrc equipment
US7366304B2 (en) * 2003-10-07 2008-04-29 Lenovo (Singapore) Pte. Ltd. Cruable U-NII wireless radio with secure, integral antenna connection via SM BIOS in U-NII wireless ready device
US7250695B2 (en) * 2003-10-31 2007-07-31 Hewlett-Packard Development Company, L.P. Controlling power supplied to a circuit using an externally applied magnetic field
US20050200513A1 (en) * 2004-03-12 2005-09-15 Bruno Boily Anti fraud card system
US8624740B2 (en) 2005-02-04 2014-01-07 Philip Morris Usa Inc. Controllable RFID card
JP4821193B2 (en) * 2005-07-08 2011-11-24 ソニー株式会社 Signal processing device
JP4867299B2 (en) * 2005-11-09 2012-02-01 大日本印刷株式会社 IC card and power supply control method
JP4968433B2 (en) * 2006-03-29 2012-07-04 大日本印刷株式会社 Non-contact type data carrier device with non-contact type switch and sensor system using non-contact type data carrier device
US20080001706A1 (en) * 2006-06-19 2008-01-03 Kaba Iico Inc. Low power detection method for proximity lock
CN100465992C (en) * 2007-05-16 2009-03-04 北京飞天诚信科技有限公司 Non-contact card and its control method
JP5051753B2 (en) * 2007-05-21 2012-10-17 株式会社フジキン Valve operation information recording system
JP5390386B2 (en) * 2007-08-07 2014-01-15 富士通株式会社 Response wireless device and wireless communication method thereof
EP2053546A1 (en) * 2007-10-26 2009-04-29 Gemplus Radiofrequency communication device comprising a timer
JP5574986B2 (en) * 2008-03-07 2014-08-20 コーニンクレッカ フィリップス エヌ ヴェ Method for driving a switch between a device and a power supply
JP2008251024A (en) * 2008-05-01 2008-10-16 Taku Yamaguchi Train ticket gate system
TWI509522B (en) * 2010-12-03 2015-11-21 Nationz Technologies Inc Rf device, rf reader, and related communication system and method
JP6119244B2 (en) * 2012-12-28 2017-04-26 大日本印刷株式会社 Power switch circuit and battery-powered device
JP6421076B2 (en) * 2015-05-13 2018-11-07 新光電気工業株式会社 Information collection circuit, information collection module
GB2595198B (en) * 2018-02-07 2023-06-14 Ifpl Group Ltd Apparatus for device charging

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2088540A1 (en) * 2008-02-06 2009-08-12 Gemalto SA Portable object with auto-switching device
WO2009098137A1 (en) * 2008-02-06 2009-08-13 Gemalto Sa Portable object with self switching device
US9070059B2 (en) 2008-02-06 2015-06-30 Gemalto Sa Portable object with self switching device
EP2369524A1 (en) * 2008-11-26 2011-09-28 Nationz Technologies Inc. Radio frequency sim card, radio frequency card reader and magnetic induction control method for radio frequency communication
EP2369524A4 (en) * 2008-11-26 2012-06-27 Nationz Technologies Inc Radio frequency sim card, radio frequency card reader and magnetic induction control method for radio frequency communication
US8630584B2 (en) 2008-11-26 2014-01-14 Nationz Technologies Inc. RF SIM card, card reader, and communication method
EP2511849A1 (en) * 2009-12-09 2012-10-17 Nationz Technologies Inc. Radio frequency (rf) apparatus, rf card reader, relative communication system and communication method
EP2511849A4 (en) * 2009-12-09 2014-07-02 Nationz Technologies Inc Radio frequency (rf) apparatus, rf card reader, relative communication system and communication method
GB2476334A (en) * 2009-12-15 2011-06-22 Samsung Electro Mech Electronic Shelf Label Wake Up Using Magnetic Field
GB2476334B (en) * 2009-12-15 2012-02-08 Samsung Electro Mech Electronic shelf label system having wake-up function using magnetic field detection

Also Published As

Publication number Publication date
JPH09212603A (en) 1997-08-15
AU722779B2 (en) 2000-08-10
GB9701996D0 (en) 1997-03-19
US6011483A (en) 2000-01-04
JP3226778B2 (en) 2001-11-05
AU1227497A (en) 1997-08-28

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